has not proven

USAGE SUMMARY

The phrase "has not proven" is correct and usable in written English.
It can be used when discussing something that has not yet demonstrated its effectiveness or validity. Example: "The new treatment has not proven to be effective in clinical trials."

✓ Grammatically correct

News & Media

Science

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

However, the reality has not proven nearly so simple.

Massachusetts Institute of Technology

"D.C.F. has not proven any neglect by our client Rafael".

The New York Times

"The other side has not proven it by Scripture".

The New York Times

"That, however, has not proven to be the case".

The New York Times

Just doing sugar alone has not proven to be the holy grail.

The Guardian - Business

In fact, carefully controlled research has not proven the effectiveness of charter schools.

The New York Times

Treating excitotoxicity using glutamate-receptor antagonists has not proven clinically viable, necessitating more sophisticated approaches.

Trends in Molecular Medicine

Taxing employer-provided health benefits has not proven politically popular, either.

The Washington Post

Moreover, maglev has not proven to be anywhere near cost competitive with conventional steel rail.

MIT Technology Review

Over the long haul, the Senate has not proven much more of a stumbling block than the House.

Princeton University

Mr. Bloomberg is not invested in any particular police philosophy that has not proven its worth, Mr. Kelly said.

The New York Times

Expert writing Tips

Best practice

When using "has not proven", be specific about what 'it' refers to. Ambiguity can weaken the impact of your statement.

Common error

Avoid using "has not proven" in situations where an active voice is more appropriate. For instance, instead of saying "the researcher has not proven the hypothesis", consider "the researcher failed to prove the hypothesis" for a more direct statement.

Linguistic Context

The phrase "has not proven" functions as a negative assertion, indicating a lack of verification or validation. It suggests that something has not met the required standard of evidence or effectiveness. Ludwig AI confirms its correctness and usability.

Expression frequency: Very common

Frequent in

News & Media

35%

Science

49%

Academia

10%

Less common in

Formal & Business

3%

Wiki

2%

Reference

1%

Ludwig's WRAP-UP

In summary, the phrase "has not proven" is a grammatically sound and frequently employed expression used to denote a lack of evidence or validation. As Ludwig AI confirms, it is widely applicable across diverse contexts, most notably in scientific, academic, and news-related domains. While versatile, it's crucial to ensure clarity and specificity in its usage, steering clear of ambiguity. Alternatives such as "has not demonstrated" and "remains unproven" offer nuanced ways to convey similar meanings. By adhering to best practices and avoiding common errors, writers can effectively use "has not proven" to communicate doubt or the absence of conclusive support.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

has not been shown

Indicates a lack of demonstration or evidence, shifting the focus slightly from proof to visible demonstration.

has not demonstrated

Highlights the absence of a clear display or indication of success or truth.

has not been established

Suggests that something hasn't been firmly set or confirmed, focusing on the lack of a stable foundation.

remains unproven

Indicates that something is still awaiting proof or validation, highlighting its current uncertain status.

has not been verified

Implies a lack of confirmation or validation, emphasizing the need for further checks.

is yet to be confirmed

Emphasizes that something has not been officially or definitively validated.

has failed to show

Emphasizes the unsuccessful attempt to present evidence or results.

is not supported by evidence

Highlights the absence of factual or logical support.

lacks evidence

Focuses on the absence of supporting data or information.

remains to be seen

Suggests that the outcome or validity is still uncertain and will only become clear in the future.

FAQs

What does "has not proven" mean?

The phrase "has not proven" indicates that something lacks sufficient evidence or confirmation to be considered true or effective. It suggests uncertainty or a need for further validation.

What are some alternatives to "has not proven"?

You can use alternatives like "has not demonstrated", "has not been shown", or "remains unproven" depending on the specific context.

Is it better to say "has not proven" or "has not been proven"?

Both phrases are grammatically correct, but "has not proven" is generally used when the subject is actively trying to prove something, while "has not been proven" implies a more passive state where proof is lacking regardless of active attempts.

Can "has not proven" be used in formal writing?

Yes, "has not proven" is suitable for formal writing, including academic papers, reports, and business communications. However, ensure that the context is clear and the statement is supported by evidence.